Network bandwidth and Latency consideration to support quality WebVR experience

Hi all,

Hope this email finds you well.

I understand that the group mostly focuses on exposing the VR hardware capabilities to the web browsers so please do let me know if the below matter would be better answered somewhere else (e.g. on WebVR's or Aframe's slack group).

I am looking into AR/VR at Vodafone Group from the device standpoint and I'd like to understand the WebVR group's expectation from network operators (be it fixed or cellular), in particular what the network capability are needed to support a massive adoption of high quality WebVR experience by 2020/2021.

I have basically two questions:

-          Would you say that the bandwidth required by a high quality WebVR experience (in 2020/2021) will be compared to an image-intensive application e.g. Snapchat, Instagram or even Facebook that constantly download files or stream data to devices?

-          Or would a high quality WebVR experience already live with current 4G datarates i.e. below 15Mbps, or should we brace for really high data rate i.e. above 20Mbps (or even 1Gbps) and why?

I have the following assumptions in mind (those may be really bad assumptions though):

-          By 2020/2021, the first 5G networks and mobile chipsets will be available

-          By high quality I assume Stereoscopic view, 4K per eye

-          WebVR websites will mainly be hosted in public Clouds (e.g. Dublin's or Virginia's Amazon Cloud), sometimes in IPX endpoints (e.g. Netflix's CDN) or maybe even mobile edge cloud in case ultra-low latency is required.

Kind Regards

Aguibou